Which of the following describes the process by which dissolved nutrients are forced out of blood vessels and into tissues?
a. simple diffusion
b. filtration
c. osmosis
d. active transport
Answer: b. filtration
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Killer lymphocytes can elicit self-destruct mechanisms in target cells by interacting with
A) Fas ligand. B) Fas receptors. C) Ras ligand. D) adaptor proteins. E) procaspase.
What does the chemiosmotic process in chloroplasts involve?
A) establishment of a proton gradient across the thylakoid membrane B) diffusion of electrons through the thylakoid membrane C) reduction of water to produce ATP energy D) movement of water by osmosis into the thylakoid space from the stroma E) formation of glucose, using carbon dioxide, NADPH, and ATP
Which large animals were wiped out by the Cretaceous extinction?
A) mammoths B) dinosaurs C) whales D) sharks
You are given a pill in a scientific trial that looks identical to a pill containing an active ingredient, but your pill does not contain an active ingredient. The pill you were given is called a(n):
A) treatment. B) aspirin. C) tablet. D) narcotic. E) placebo.